During the jacksonian era, and for the first time in american political history one: a. whigs won a majority in congressb. a president assumed his position to be superior to that of congressc. a state effectively nullified a federal lawd. a third-party candidate finished second in a presidential contest

The correct answer here is A.

During the presidency of Andrew Jackson the president is for the first time seen as more powerful than the Congress. It is important to note the the power shifts fairly regularly. Jackson along Roosevelt and Lincoln are few of the presidents that actually held more power than Congress and Jackson effectively vetoed a lot of acts of Congress.